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path: root/drivers/input
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2011-05-17Input: tsc2007 - add poll_delay parameter to platform dataThierry Reding
Depending on the quality of the touch panel, the time for the X-, X+, Y- and Y+ inputs to settle may vary. The poll_delay parameter can be used to override the default of 1 millisecond. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Kwangwoo Lee <kwangwoo.lee@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - add max_rt parameter to platform dataThierry Reding
Finger touch events or very quick stylus events on low-quality panels can cause the tsc2007 to read bogus values. Looking at oscilloscope snapshots, this seems to be caused by the touch event disappearing during the measurements. These bogus values result in misclicks, where the X and Y values deviate from the real position. Most of these misclicks can be filtered out by setting a low enough threshold for the maximum resistance (which is loosely the inverse of the pressure) allowed to consider a set of values valid. Since this behaviour is largely dependent on the type and quality of the panel, this commit introduces the max_rt parameter. The default value is kept at MAX_12BIT. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-17Input: tsc2007 - debounce pressure measurementThierry Reding
When the controller signals a pen-down event via the platform-specific GPIO, while the sample values indicate an invalid measurement, the measurement needs to be repeated. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: ad714x - fix captouch wheel option algorithmMichael Hennerich
As reported by Jean-Francois Dagenais, the wheel algorithm caused a divide by zero exception due to missing variable pre-initialization. In fact it turned out that the whole algorithm had several problems. It is therefore replaced with something that is known working. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: ad714x - allow platform code to specify irqflagsMichael Hennerich
Add option to specify irqflags in platfrom data. Also update copyright notice. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: ad714x - fix threshold and completion interrupt masksMichael Hennerich
Fix two issues in the threshold and completion interrupt mask and unmask functions. According to the AD714x datasheets the highest stage completion interrupt should be enabled. Fix mask computation. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: ad714x - fix up input configurationMichael Hennerich
Add missing input name and set up parent devices so input devices will show in proper places in sysfs tree. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Tested-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: elantech - remove support for proprietary X driverÉric Piel
Apparently somewhere someone had a proprietary X driver. To get the multitouch info, it uses some hack on the normal API instead of using the multitouch protocol. Now that the multitouch info is transmitted correctly it makes not much sense to keep it. Especially because it's impossible to find this proprietary X driver anywhere, so the number of users must be very low. Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: elantech - report multitouch with proper ABS_MT messagesÉric Piel
Multitouch info was reported only via a old protocol used by the proprietary X driver from elantech. Let's report the multitouch info also following the official MT protocol. It's semi-mt because the device only reports the lowest/highest coordinates. This was done following the multi-touch-protocol.txt documentation, and inspired by the bcm5974 and elantech implementations. Testing was light as there is not many applications using this protocol yet, but the X synaptics driver didn't complain and the X multitouch driver behaved correctly. Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16Input: elantech - export pressure and width when supportedÉric Piel
Using the info of the Dell/Ubuntu driver, described in the protocol document, report both width and pressure when pressing 1 and 3 fingers, for the versions of the touchpad which support it. Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-14Input: atmel_tsadcc - correct call to input_free_deviceJulia Lawall
This error handling code can be reached before ts_dev->input is initialized, so it is safer to always use the original name, input_dev. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: add driver FSL MPR121 capacitive touch sensorZhang Jiejing
This patch adds basic support for Freescale MPR121 capacitive touch sensor. It's an i2c controller with up to 12 capacitance sensing inputs. Product information (data sheet, application notes) can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121 Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: remove useless synchronize_rcu() callsEric Dumazet
There is no need to call synchronize_rcu() after a list insertion, or a NULL->ptr assignment. However, the reverse operations do need this call. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: ads7846 - fix gpio_pendown configurationIgor Grinberg
The pendown gpio was requested but not configured for input. Configure it for input. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: ads7846 - add possibility to use external vref on ads7846Alexander Stein
Just set vref_mv in your platform config to use external vref. Otherwise the internal one is used. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-12Input: rotary-encoder - add support for half-period encodersJohan Hovold
Add support for encoders that have two detents per input signal period. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-11Input: rotary-encoder - refactor and clean upJohan Hovold
Refactor state retrieval and event reporting in interrupt handler. Remove a few empty lines. Signed-off-by: Johan Hovold <jhovold@gmail.com> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-11Input: tegra-kbc - change wakeup logic to be all or nothingRakesh Iyer
Tegra hardware design cannot reliably support an arbitrary set of keys waking up the system. Modify wakeup logic so either any key wakes the system up or none will do. Signed-off-by: Rakesh Iyer <riyer@nvidia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-05Input: ati_remote2 - return the error code from sysfs channel_mask storeVille Syrjala
If the channel_mask setup fails when configuring it through sysfs, return the error code to the caller instead of claiming success. Signed-off-by: Ville Syrjala <syrjala@sci.fi> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-05Input: sh_keysc - only compile PM code if PM is enabledDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-03Input: h3600_ts_input - fix a leak of the IRQ during init failureAxel Lin
Make sure we are passing the same cookie in all calls to request_irq() and free_irq(). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-03Input: sh_keysc - make sh_keysc_device_driver staticDmitry Torokhov
This variable is not used outside of the module so we should mark it as static. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-28Input: sh_keysc - switch to threaded IRQ handlerMagnus Damm
Update the KEYSC driver to make use of threaded IRQs with IRQF_ONESHOT to improve interrupt latency. The driver is using udelay() in the ISR to make sure the hardware has stabilized. Without using interrupt threads this delay may affect the latency of the rest of the system. Also pass dev_name() as string for /proc/interrupts. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-28Input: sh_keysc - implement runtime PM supportMagnus Damm
Convert the KEYSC driver from MSTP bit control through a magic clock string to making use of Runtime PM. Also, update the system suspend/resume callbacks to drop the Runtime PM reference in the case of wakeup disabled. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: input-polldev - use system-wide freezable workqueueDmitry Torokhov
With introduction of concurrency-managed work queues there is rarely a point in creating private workqueues. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: tegra-kbc - add ghost key filterRakesh Iyer
Add ghost key filtering support for the Nvidia Tegra matrix keyboard. Signed-off-by: Rakesh Iyer <riyer@nvidia.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: twl4030-pwrbutton - fix a leak of the IRQ during init failureAxel Lin
In twl4030_pwrbutton_probe error path, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: omap-keypad - fix a wrong free_irq() parameterAxel Lin
In current implementation, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27Input: qt1070 - add MODULE_DEVICE_TABLEAxel Lin
Adding the necessary MODULE_DEVICE_TABLE() information allows the driver to be automatically loaded by udev Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-26Input: evdev - only signal polls on full packetsJeff Brown
This patch modifies evdev so that it only becomes readable when the buffer contains an EV_SYN/SYN_REPORT event. On SMP systems, it is possible for an evdev client blocked on poll() to wake up and read events from the evdev ring buffer at the same rate as they are enqueued. This can result in high CPU usage, particularly for MT devices, because the client ends up reading events one at a time instead of reading complete packets. We eliminate this problem by making the device readable only when the buffer contains at least one complete packet. This causes clients to block until the entire packet is available. Signed-off-by: Jeff Brown <jeffbrown@android.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-22Merge commit 'v2.6.39-rc4' into nextDmitry Torokhov
2011-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xen-kbdfront - fix mouse getting stuck after save/restore Input: estimate number of events per packet Input: evdev - indicate buffer overrun with SYN_DROPPED Input: document event types and codes and their intended use Input: add KEY_IMAGES specifically for AL Image Browser Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() Input: h3600_ts - fix error handling at connect Input: twl4030_keypad - avoid potential NULL-pointer dereference
2011-04-18Input: xen-kbdfront - fix mouse getting stuck after save/restoreIgor Mammedov
Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254. Acked-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Igor Mammedov <imammedo@redhat.com> [v1: Expanded the commit description] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-18Input: estimate number of events per packetJeff Brown
Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: Jeff Brown <jeffbrown@android.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: evdev - indicate buffer overrun with SYN_DROPPEDJeff Brown
Add a new EV_SYN code, SYN_DROPPED, to inform the client when input events have been dropped from the evdev input buffer due to a buffer overrun. The client should use this event as a hint to reset its state or ignore all following events until the next packet begins. Signed-off-by: Jeff Brown <jeffbrown@android.com> [dtor@mail.ru: Implement Henrik's suggestion and drop old events in case of overflow.] Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: atmel_mxt_ts - convert to MT protocol BJoonyoung Shim
Atmel touchscreen chips can use MT protocol B because they can assign unique id to ABS_MT_TRACKING_ID from finger id provided by hardware. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: atmel_mxt_ts - make CHG line high after enabling interruptsIiro Valkonen
Make the CHG line (interrupt line) go high after the interrupts have been enabled to make sure we don't miss the falling edge. Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com> Acked-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-12Input: atmel_mxt_ts - support 12bit resolutionJoonyoung Shim
Atmel touchscreen chip can support 12bit resolution and this patch modifies to get maximum x and y size from platform data. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Acked-by: Iiro Valkonen <iiro.valkonen@atmel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-11Input: add driver for Maxim max11801 touchscreen controllerZhang Jiejing
Add MAXI max11801 resistive touchscreen controller driver. This driver uses Auto Mode and Aperture Mode. Support for other max1180x devices can be added to this driver as well, as they use almost the same register addresses and codes. You can find data sheet here: http://www.maxim-ic.com/datasheet/index.mvp/id/5943 Signed-off-by: Zhang Jiejing <jiejing.zhang@freescale.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-11Input: gpio-keys - add support for setting device nameAlexander Stein
This patch allows to set a device name which helps distinguishing several gpio-keys devices. Signed-off-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-11Input: gpio_keys - add support for EV_ABSAlexander Stein
With this patch you can setup a group of GPIOs representing a specific position on an EV_ABS axis. Signed-off-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-11Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe()Axel Lin
We should first check whether platform data is NULL or not, before dereferencing it to get the keymap. Signed-off-by: Axel Lin <axel.lin@gmail.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-07Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
2011-04-06Input: h3600_ts - fix error handling at connectChristoph Fritz
In case of an error in h3600ts_connect(), deconstruct in correct order and with the right calls. Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-06Input: twl4030_keypad - avoid potential NULL-pointer dereferenceShubhrajyoti D
Signed-off-by: Shubhrajyoti D <a0393217@india.ti.com> Acked-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: rpckbd - fix a leak of the IRQ during init failure Input: wacom - add support for Lenovo tablet ID (0xE6) Input: i8042 - downgrade selftest error message to dbg() Input: synaptics - fix crash in synaptics_module_init() Input: spear-keyboard - fix inverted condition in interrupt handler Input: uinput - allow for 0/0 min/max on absolute axes. Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes Input: sparse-keymap - report scancodes with key events Input: h3600_ts_input - fix a spelling error Input: wacom - report resolution for pen devices Input: wacom - constify wacom_features for a new missed Bamboo models
2011-04-02Input: rpckbd - fix a leak of the IRQ during init failureAxel Lin
In rpckbd_open prror path, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-31Input: wacom - add support for Lenovo tablet ID (0xE6)Manoj Iyer
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> Acked-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31Input: i8042 - downgrade selftest error message to dbg()Paul Bolle
On a "really fragile" laptop I noticed a single i8042.c: i8042 controller selftest failed. (0x1 != 0x55) error in the log. But there's no reason to print this message at KERN_ERR level each time that loop fails, especially since the message telling about the overall selftest failure is printed at KERN_INFO level (on X86). Add an actual error message for non-X86 systems, where a selftest failure is (apparently) more serious. Remove a space in an another error message. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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